being a socialist publication. Social-Demokraten (The Social Democrat) (October 1911 – March 1921; SPA: 1911–1919) — Official organ of the Scandinavian Socialist Federation of the Socialist Party of America, this Chicago publication turned to revolutionary socialism with the assumption of editorial tasks by N. Juel Christensen at the end of 1918. Following the split of the Socialist Party in the summer of 1919, Socialdemokraten was firmly allied with the Communist camp. A broken run of Socialdemokraten is available on microfilm from the Illinois State Historical Society. Polish Robotnik (The Worker) (May 1896 – 1917) — Weekly newspaper launched in New York City on May Day, 1896, by Polish-American partisans of the Polish Socialist Party. The paper was moved to Chicago in 1900, to Brooklyn in 1907, and back to New York City in 1908. The paper concentrated on both American and international news, with extensive coverage of happenings in German- and Russian-occupied Poland and coverage of the activities of the nationalistically inclined Polish Socialist Alliance. Robotnik Polski (The Polish Worker) (1917 – December 1967) — Polish-language socialist weekly continuing the work of the Robotnik with the same editor (R. Mazurkiewicz) and same city of origin (New York). Peaking with a circulation of more than 25,000 in 1923, the paper later moved to a monthly publication cycle Dziennik Ludowy (People's Daily) (1907–1925) — Chicago Polish-language socialist daily which featured longer and generally better-written articles than many of its contemporaries. In December 1908 the Polish-American socialist movement split, with a minority backing Józef Piłsudski's faction of the Polish Socialist Party, oriented towards secret paramilitary organization and terrorist action against Tsarist authority, with a majority favoring popular education and labor activism, formed the "Polish Section of the Socialist Party" (Zwiazek Polskiej Partii Socjalistyczne — or ZPPS). Dziennik Ludowy became the official organ of the latter group, which later merged with the Polish Socialist Alliance to form the Polish Socialist Federation of the Socialist Party. Niedzielny Dziennik Ludowy (Sunday People's News) (1920) — Weekly Sunday edition of the Dziennik Ludowy. No examples are known to have survived. Swiat i Czlowiek (The World and Man) (1908–1912) — Monthly organ of the moderate faction of the Polish Socialist Party, published in Newark, New Jersey. Few copies have survived. Wiedza (Knowledge) (1910) — Monthly magazine of the left wing faction of the Polish Socialist Party, published in New York City. No copies are known to have survived.